1. Department of Dietetics and Nutrition, Florida International University, Miami, Florida, USA.
2. Division of Digestive Diseases, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.
3. Department of Epidemiology, University of Nebraska Medical Center, Omaha, Nebraska, USA.
4. Department of Humanities, Health and Society, Florida International University, Miami, Florida, USA.
5. Center for the Clinical Trials Network, National Institute on Drug Abuse, National Institutes of Health, Bethesda, Maryland, USA.
6. Department of Gastroenterology, Lake Erie College of Osteopathic Medicine, Larkin Community Hospital, South Miami, Florida, USA.